// Sanity checks to make sure I didn't break it.
#ifdef TEST1
-typedef boost::mpl::list<char, short, int, long> integral_test_types;
+typedef boost::mpl::list<signed char, short, int, long> integral_test_types;
typedef boost::mpl::list<int, long> large_integral_test_types;
typedef boost::mpl::list<> mp_integral_test_types;
#elif defined(TEST2)